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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2016 Sep 02 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 02 Sep 2016 until 04 Sep 2016
Brillamenti solari

C-class flares expected, (probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

10cm fluxAp
02 Sep 2016095028
03 Sep 2016093014
04 Sep 2016091007

Bulletin

Solar activity has been very low, no C-class flares. All five visible ARs have simple magnetic field configuration (beta or alpha). No Earth directed CMEs were detected. Solar activity is expected to remain low over the next 24 hours with possible C-class flares. The Earth is under the influence of a high speed stream from a coronal hole. As a consequence, in the past 24 h active conditions were observed at Dourbes (K = 4) and major storm conditions at planetary levels (Kp = 6). Currrently Solar wind speed is at 630 km/s with magnetic field intensity of 6 nT. Increased geomagnetic activity is expected to persist for the next 48 h.

Today's estimated international sunspot number (ISN): 068, based on 23 stations.

Solar indices for 01 Sep 2016

Wolf number Catania092
10cm solar flux095
AK Chambon La Forêt057
AK Wingst030
Estimated Ap034
Estimated international sunspot number079 - Based on 30 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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Notizie sul meteo spaziale

Ultimo brillamento X2026/02/04X4.21
Ultimo brillamento M2026/03/16M2.7
Ultima tempesta geomagnetica2026/03/14Kp6 (G2)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (4%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
febbraio 202678.2 -34.3
marzo 202684.2 +6
Ultimi 30 giorni59.8 -62.5

Questo giorno nella storia*

Brillamenti solari
12003X2.27
22002M5.82
31999M4.71
42012M2
52002M1.88
DstG
12015-234G4
22013-132G3
31989-119G1
42012-69G1
51994-55G1
*dal 1994

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